平均数

The mean difference is significant at the .05 level .

平均数的显著性差异是设在。05的水准。

What you do first is to calculate the mean number.

你首先要做的是算出平均数。

Class midpoint and chronological average both are one of the most important concepts in statistics.

组中值和序时平均数是统计学中的常用概念，在经济分析中应用很广泛。

The first moment is the mean of the distribution.

第一个矩是分配的平均数

Topics include comparisons of means and proportions; the normal distribution; regression and correlation; confounding; concepts of study design, including randomization, sample size, and power considerations; logistic regression; and an overview of some methods in survival analysis.

主题包括平均数和比例的比较、常态分配、回归和相关、混淆变量、研究设计的概念(包含随机、样本数与检定力的考虑)；逻辑斯回归、存活分析中一些方法的概述。

Q: There is a one-millionth chance of a vaccine going bad. So far, we have given the vaccine 30 million times, and we admit that there are two to three cases of vaccines going bad. Is this because our vaccines are so much better than average?

记者：本来疫苗的异常率是百万分之一，但是现在我们注射三千万人次，据我们官方承认也就两三个，是否我们质量高于大家的平均数，我们疫苗质量非常好。

Patients with major opportunistic infections and CD4 ^ + T lymphocyte count is closely related to the average.

患者的主要机会性感染与CD4^＋T淋巴细胞计数的平均数密切相关。

165 Ordinary shares in issue during the period.

期间内已发行普通股之加权平均数 242，914，355 股（二零零五年：243，354，165 股）计算。

Independent samples and paired samples, F distribution, critical values for F distribution.

教学目的：通过学习理解独立样本和成对样本的区别，进一步掌握两样本平均数比较的 t 测验以及方差比较的 F 测验原理和方法。

Outline of the course include: Introduction ; Data processing and analysis ; Descriptive statistics ; Statistical inference ; Analysis of variance ; Correlation of variable ; Non parametric statistics analysis.

本课程的主要内容包含：绪论、资料整理与分析、描述统计、推论统计、平均数的差异、变数间的关系、无母数统计分析。

On closer examination, though, this is not a vote for multilateralism but just the opposite.

仔细审视后我们发现，这并非是对多边主义投出的赞成票，而是恰好相反。

Uncovering their weak spots, so I can defeat them.

揭露出他们的弱点，这样我就可以打败他们了。